Re: imagemagic in image-mode and image-dired-thumbnail-mode?

[Glenn Morris]

Lars Magne Ingebrigtsen wrote:

>> How about this one? Would it ever make sense to use libjpeg or libpng if
>> imagemagick support is available? If not, then image-mode and
>> image-dired can use imagemagick whenever present and no custom var is
>> necessary.
>
> That's what shr does, but I think `create-image' should default to
> imagemagick if TYPE is nil and imagemagick is available.  There isn't
> much reason to prefer using the other decoders, since most (all?) of the
> features provided by the other formats is also provided by imagemagick.

I've seen (unanswered) crash reports related to ImageMagick. Eg

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8341
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11701
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11831

And as you know, ImageMagick support for animated/multi-frame images is
broken
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7978

And likewise for metadata in general
http://debbugs.gnu.org/cgi/pkgreport.cgi?include=subject%3Amagick;package=emacs


And no-one seems interested in working on any of these issues, so IMO we
should stick with the more tested image libraries as default for the
formats that they handle.